Wyandanch, New York
34 topographic sheets cover this place, the earliest surveyed in 1901 and the latest in 1984. It stands in Babylon town. It lies in ZIP code area 11798. The Survey maps it on the Greenlawn quadrangle. 12,990 people lived here at the 2020 count. It stands 56 feet above sea level.
Then and now
1901 to 1984The same ground, surveyed 83 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.


Population over time
2 figuresWyandanch grew from 11,647 to 12,990 between 2010 and 2020. These are the recorded population figures Wikidata holds for this place, reached through the Geographic Names Information System number this page is keyed on rather than by name, so they belong to this place and not to another of the same name. Most are census counts, but not all are: an early figure may be a founding or settlement estimate, and an estimate published within five years of a census is left out. The change column is computed, and is left blank where more than 20 years separate a figure from the one before it, because a gap that long is not a change between two counts.
| Year | People | Change |
|---|---|---|
| 2010 | 11,647 | |
| 2020 | 12,990 | +1,343 (+12%) |
Topographic sheets covering this place
15 surveys from 34 printed sheetsMatched by testing this settlement's coordinate against the published boundary of every sheet in the United States Geological Survey's historical collection. Each opens the scanned sheet at the Survey.
- 1901 USGS Northport quadrangle1:62500
- 1903 USGS Northport quadrangle1:62500, 8 printings
- 1904 USGS Islip quadrangle1:125000, 5 printings
- 1942 USGS Islip quadrangle1:125000
- 1947 USGS Greenlawn quadrangle1:24000
- 1949 USGS New York quadrangle1:250000
- 1954 USGS Greenlawn quadrangle1:24000, 2 printings
- 1954 USGS New York quadrangle1:250000, 2 printings
- 1957 USGS New York quadrangle1:250000
- 1958 USGS New York quadrangle1:250000, 3 printings
- 1960 USGS New York quadrangle1:250000, 2 printings
- 1967 USGS Greenlawn quadrangle1:24000, 3 printings
- 1969 USGS New York quadrangle1:250000
- 1979 USGS Greenlawn quadrangle1:24000
- 1984 USGS Long Island West quadrangle1:100000, 2 printings
Fires near this place
992 since 2000Regional context, not property-specific evidence. The federal wildfire occurrence database lists 992 fires within 5 miles of Wyandanch between 2000 and 2020, burning about 564 acres in total. 118 started naturally. 157 were recorded as arson. Distance is straight-line from the map coordinates, so a fire counted here may appear on a neighbouring settlement's page as well.
| Reported cause | Fires |
|---|---|
| Missing data/not specified/undetermined | 555 |
| Arson/incendiarism | 157 |
| Natural | 118 |
| Smoking | 45 |
| Debris and open burning | 37 |
| Equipment and vehicle use | 32 |
| Railroad operations and maintenance | 17 |
| Power generation/transmission/distribution | 15 |
| Recreation and ceremony | 11 |
| Misuse of fire by a minor | 5 |
The most recent of them, most recent first, with the day each was reported and the service that recorded it.
| Date | Cause | Size | Reported by | Name on the report |
|---|---|---|---|---|
| 9 September 2017 | Arson/incendiarism | under an acre | Fire Department of New York | N/A |
| 9 September 2013 | Missing data/not specified/undetermined | under an acre | Fire Department of New York | N/A |
| 9 September 2010 | Missing data/not specified/undetermined | under an acre | Fire Department of New York | not named |
| 9 September 2007 | Natural | under an acre | Fire Department of New York | not named |
| 9 September 2005 | Debris and open burning | under an acre | Fire Department of New York | not named |
| 8 September 2015 | Missing data/not specified/undetermined | 1.9 acres | Fire Department of New York | N/A |
| 8 September 2010 | Missing data/not specified/undetermined | under an acre | Fire Department of New York | not named |
| 8 September 2010 | Missing data/not specified/undetermined | under an acre | Fire Department of New York | not named |
Settlements close enough to share some of these fires:
Storms near this place
6 since 1998Regional context, not property-specific evidence. The National Weather Service names Wyandanch in 6 storm reports between 1998 and 2023: 3 flash flood, 2 thunderstorm wind, 1 heavy rain. No death or injury is recorded in these reports. Each account below is quoted exactly as the forecast office filed it, from the NOAA Storm Events Database, and each date opens the federal record of that event.
| When | Event | Place named | Harm | What the report says |
|---|---|---|---|---|
| October 2018 | Thunderstorm Wind | Wyandanch | $1,000 | Tree reported down. |
| September 2023 | Flash Flood | Wyandanch | - | NY 110 at Conklin Street in Farmingdale is closed due to flooding. |
| June 2013 | Flash Flood | Wyandanch | - | Twenty to thirty cars became submerged in water up to their roofs in the Wyandanch Long Island Railroad parking lot. |
| August 2011 | Flash Flood | Wyandanch | - | Several vehicles were trapped in flood waters which was as high as the car doors on Rt. 110 near Conklin St. in Farmingdale. Local authorities barricaded the area and were diverting traffic off of the road. The Automated Surface Observing System located at Republic Airport in Farmingdale recorded 1.62 inches of rainfall between 5:53 and 6:53 EST and a total of 6.28 inches of rain for the event. Storm total rainfall amounts across the rest of Suffolk County ranged from 1.07 inches in Bridgehampton to 9.18 inches in West Islip. |
| March 2010 | Heavy Rain | Wyandanch | - | Approximately 5 inches of water was covering Route 110 south of Smith St. in East Farmingdale. |
| June 1998 | Thunderstorm Wind | Wyandanch | - | no account filed |
Nearest settlements
The eight closest, with where each one stands in the county. Distances are straight-line, computed from the Geographic Names Information System coordinates.
| Map | Place | Distance | Sheets |
|---|---|---|---|
| Wheatley Heights | 0.8 miles | 34 | |
| Deer Park | 1.7 miles | 34 | |
| Half Hollow | 1.8 miles | 34 | |
| West Babylon | 2.5 miles | 33 | |
| North Lindenhurst | 3.0 miles | 33 | |
| North Babylon | 3.3 miles | 33 | |
| East Farmingdale | 3.4 miles | 33 | |
| Lower Melville | 3.5 miles | 32 |
Elsewhere
Matched on this settlement's Geographic Names Information System number rather than its name, so it cannot be a different place of the same name in another state.
| Wikipedia article on Wyandanch | An encyclopaedic summary. Its text is share-alike, so it is linked here rather than copied. |
| Wikidata item Q3460228 | The structured record the population and elevation above come from. Public domain (CC0). |
Provenance
This settlement is recorded in the Geographic Names Information System as feature 971769. The sheet list is computed by point-in-boundary test against the United States Geological Survey's historical topographic inventory. Both are works of the United States government and carry no copyright under 17 U.S.C. 105.
Wildfire. Short, Karen C. 2022. Spatial wildfire occurrence data for the United States, 1992-2020 [FPA_FOD_20221014]. 6th Edition. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2013-0009.6 Collected with United States Government funding and usable without additional permissions or fees.
Storms. NOAA National Centers for Environmental Information, Storm Events Database https://www.ncei.noaa.gov/stormevents/ A work of the United States government, no copyright under 17 U.S.C. 105. Narratives are quoted verbatim from the National Weather Service report and are not edited or summarised.














